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I've never done this before but after reading a few thread I decided to check my valves for the first time and to my surprise it was much easier than I thought.
My bike is a 2005 Sp 500 HO.
I first pulled the seat and the right side panel off, and that's it! It wasn't too bad to get at.
Next I pulled the spark plug out and removed both the head cover ( 8-8mm bolts)
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then the side cam cover (5-8mm bolts).
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Also remove the plug in the recoil cover (14mm bolt) to see the timming marks.
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Next I turned the engine over with the pull cord untill it was at TDC of the compression stroke.
The best was to tell that your at TDC of the compression stroke is to rotate the engine until the
timing marks are parallel to rocker cover gasket surface.
The cam sprocket locating pin will be facing upward directly in line with the crankshaft to camshaft center line.
Now fine adjust by looking into the timing hole in the recoil cover and line up the upside down "T" on
the flywheel into the center of the hole.
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Now using a feeler gauge, slide the .006" (.15mm)blade between the top of the valve and the bottom of the adjuster and adjust accordingly
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To adjust, Loosen the locknut (10mm) and check clearance with a feeler guage. Clearance should be .006" (.15mm) for both, intake and exhaust valves. Turn the adjuster with a stubby flat blade screwdriver untill the proper clearance is achieved then tighten the locknut (5.8-7.2 ft. lbs) while holding the adjuster in place with the screwdriver. Re-check the clearance with the feeler guage one last time and re-assemble the covers (72 in.lbs) and plugs.
The only thing that i noticed was that I had to clean and silicone the side cam cover other than that I found the whole process rather simple.
I'd give it a 4 out of 10 on the skill level scale.
I hope this helps!
Thanks Rich

Dear friends, I’m posting to you some information about this competition, and I want to inform you that the first race is on 17-19 of april
You may remember last year you received from us, sport club 4x4 Adventure, invitations and news about the professional QUAD competition in Bulgaria called ATV Challenge Cup. In the last October 94 competitors from 4 different countries in 5 classes competed on a professional off road track.
After the successful debut of ATV Challenge Cup 2007, its perfect organization, evaluated by UEM representatives and the competitors themselves, the challenges of the competitive track and the attractive awards, ATV Commission, part of the Bulgarian Motorcycle Federation, and club 4x4 Adventure proudly invite you to take part in East European ATV Championship – ATV CHALLENGE CUP BULGARIA 2009. The championship consists of 3 rounds in Bulgaria.
If you have a QUAD, like tracks designed for skillful riding with speed stages, artificial and natural obstacles and great audience, who applause and stimulates the competitors, ATV Challenge Cup Bulgaria 2009 is your championship. The professional off-road track “Dalbok Dol” is especially build for this championship and covers all FIM and UEM rules for World and European Quad Championships. Organizers of ATV Challenge Cup Bulgaria 2009 are ATV Commission of Bulgarian Motorcycle Federation and sport club 4x4 Adventure.
The prize fund for ATV Challenge Cup Bulgaria 2009 is over 20 000 Euro.

We are starting this topic so that members can share their view about ATVs; what they are used for, types, etc. This topic is intended to help new members and visitors and generally those that don't know much about ATVs and would like to learn. So anything you can add to this topic that you feel would benefit a new comer, please add a reply..

I have a Chinese Hybird 250 or that's what I was told it was. I found 17 numbers on the frame. Will these numbers tell me exactly what it is that I have? (I know that its a 2006 from a plate on the front)

I have a 110cc atv not sure of a brand its a Chinese model. I put on a new harness with cdi solenoid and all those. I have put a new starter on, and carburetor. I bypassed the start button cause it was just making the solenoid click. with the new button switch the atv will crank but not start. I tried to jump the solenoid and it did nothing. I am stumped. also I noticed gas leaking from the carburetor and when I took the filter off there was gas in it. I cleaned the carburetor and nothing was stuck or clogged. can someone help me out.

Hello everyone. I am new to the forum and am hoping someone out there can help me with a no spark issue I am having with my ATV. I have the service manual and I have replaced/checked everything that I know how with the exception of the Digital Igniter Unit. Does anyone know how to test this item to verify if it is bad or not. Thanks in advance for your help. Stacey

my son has a 50cc Baja atv automatic trans that at time (right now) jerks then dies, once he trys to start it the starter causes the quad to lunge forward like the clutch is not releasing. when this happens, you cannot push the quad backwards either even with the engine off. if you raise the rear on a block it will start but the rear wheels will spin even at idle, if you pull the quad off the block the load of the machine will instantly kill the engine. im guessing its a stuck clutch issue however I cannot find any info anywhere. im an ase master auto tech so I am pretty mechanical just need a point in the right direction. any help would be greatly appreciated. thank you in advance!
Dana

I have a 2009 big bear that needs a top end , i have found a couple 2001 models on ebay my question is are they compatible? Is a 2009 400 cc big bear cylinder head the same one on a 2001 big bear 400 cc??
Please help..

Can someone tell me how to remove the rear sifferential. I've got the cv axels out. Do I remove the rear shaft. Or do I pull differential off shaft. Noticed the axel shaft leaking where it go's in the engine. .

I just bought my first arctic cat. I changed the oil and filter. Now my atv smokes only when u rev the engine. Smoke looks white grey.. slight light blue tint.. when it. Idles it doesn't smoke.. Any body have a clue what is going on. The dealer said it's not the rings.. it has the 700cc suzuki engine..

I have a 4wheeler that a customer dropped off to us for a carb clean. Cleaned carbs and drove and wheeler will start fine and idle fine as soon as you drive it and stop it falls on its face and dies. Starts right back up no problem. Can anyone help us figure this out? we are at a loss after two days

this air tube just sticks out, port on the other side of it needs to go somewhere but i cant find it!
it attaches to this.
quad runs ok, boggs at 1/4 throttle, but i havent cleaned the carb and service it yet. just got it a week ago, and havent had tome to fool around yet, besides seeing how it runs. still need to touch up some things on it, but this part is stumping me.

Hey, I got a 2007 Suzuki King Quad 700. I took it "squba diving" (not intentionally). I drained it, changed oil a few times, fired right up. My problem is the LCD display, it worked fine at first, then it would work for a minute after start up, now, it's blank, only the backlight works. Suggestions? Thank you.

Hello! I am new here and I need some help from the experts. My 9 year old son was given an adult sized 4 wheeler for Christmas. He has never ride one and has never taken a training course. Of course, I just found out about this but was never consulted about him getting this, either.
Anyways, he was able to ride it this morning and has never had any safety training and honestly, I am petrified he is going to get hurt. It will happen, it's just when.
I am in the state of Indiana and the law states you must be 14 years old to operate unless there is direct supervision of an 18 year old or other. What exactly does "direct supervision " mean? Is rhis within site of the person riding or is it someone that is ON the ATV?
Also if there are ANY SUGGESTIONS you guys can give me regarding this it would be helpful.
My son is only 9 and a very immature 9 year old at that. I feel he has no business being on this without proper training but apparently that isn't as important to some people.
Also, if there is anyone in the state of Indiana on here that can tell me the rules that would be awesome.
*in addition* the 4 wheeler is for an adult. My son is only 4 foot 9 and 65 pounda. He's tiny. I am afraid he is certainly nowhere close to having the weight to control this machine.

Hi everyone. I am hoping to find a service manual or exploded view diagram for a Lincoln 110cc Automatic Mini quad. Or any advice ect. Something seems to be locking up inside. However the quad has sat for a while. I have lubed EVERYTHING and think the piston does go up and down when I move the flywheel clockwise, but it locks going forward. Thanks and if photo,s or any more info is needed please let me know.

i am having stating issues. my electric start has stopped working. the green neutral light comes on and the red reverse light comes on. i can pull start just fine.
i would also like to find a service manual for this atv. there are alot of them out there but i don't want to pay those high prices for it.
any help would be greatly appreciated
thank you
Lee Cooper

I am looking for a good not to expensive winch for my yamaha 400 grizzley. All I am going to use it for is to raise and lower a snow blade 6-10 inches. I have been looking all over and many seem to feed back out a couple inches after feeding the cable in and I do not need that to happen. Any ideas on a winch out there?